EP0055317B1 - Module d'affichage électrochrome et système réflecteur de projection - Google Patents

Module d'affichage électrochrome et système réflecteur de projection Download PDF

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Publication number
EP0055317B1
EP0055317B1 EP80304781A EP80304781A EP0055317B1 EP 0055317 B1 EP0055317 B1 EP 0055317B1 EP 80304781 A EP80304781 A EP 80304781A EP 80304781 A EP80304781 A EP 80304781A EP 0055317 B1 EP0055317 B1 EP 0055317B1
Authority
EP
European Patent Office
Prior art keywords
display
light
cell
light guide
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80304781A
Other languages
German (de)
English (en)
Other versions
EP0055317A1 (fr
Inventor
David Horrobin Kirkman
William Arthur Warwick
Colin Leonard Bird
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to EP80304781A priority Critical patent/EP0055317B1/fr
Priority to DE8080304781T priority patent/DE3071128D1/de
Priority to US06/307,914 priority patent/US4436378A/en
Priority to JP56181231A priority patent/JPS57125920A/ja
Publication of EP0055317A1 publication Critical patent/EP0055317A1/fr
Application granted granted Critical
Publication of EP0055317B1 publication Critical patent/EP0055317B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/02—Function characteristic reflective

Claims (10)

1. Module d'affichage (10) destiné à un système d'affichage à projection par réflexion, le module comprenant une cellule (11) remplie d'un liquide comportant: une surface d'affichage (14) d'électrodes d'affichage, s'étendant dans deux dimensions sur la base de la cellule, surface dans laquelle des informations sont affichées optique- ment par une excitation sélective des électrodes d'affichage, une paroi latérale (15) autour du volume rempli de liquide et un couvercle transparent (16) pour enfermer le liquide dans la cellule, caractérisé en ce que les électrodes d'affichage diffusent la lumière, en ce que l'affichage est un affichage électrochrome et en ce que le module comporte en outre un guide de lumière latéral (12) de même étendue que la surface d'affichage dans la dimension parallèle au côté comprenant le guide, le guide ayant une face intérieure qui s'appuie ou qui fait partie de la paroi latérale sur ce côté de la cellule, une face extérieure (14) pour recevoir de la lumière provenant d'une source extérieure d'illumination et une surface supérieure réfléchissante (18) reliant la face intérieure et la face extérieure et inclinée vers le bas vers le couvercle transparent de la cellule de manière que de la lumière provenant de la source soit dirigée par le guide sur la surface d'affichage et diffusée par réflexion par cette surface à travers le couvercle transparent vers un ensemble de lentilles de projection extérieures au module.
2. Module d'affichage selon la revendication 1, dans lequel la face intérieure du guide de lumière latéral s'étend sur toute la profondeur de la cellule, la profondeur étant la dimension perpendiculaire à la surface d'affichage.
3. Module d'affichage selon la revendication 2, dans lequel la face extérieure (41) du guide de lumière latéral est plus grande que la face intérieure de manière que la dimension du guide diminue vers la cellule.
4. Module d'affichage selon l'une quelconque des revendications précédentes, dans lequel la face supérieure (18) du guide de lumière latéral est revêtue pour la rendre réfléchissante.
5. Module d'affichage selon l'une quelconque des revendications précédentes, dans lequel la paroi de la cellule est entourée, sauf si elle est adjacente au liquide de lumière, par une surface réfléchissante (17) inclinée vers l'intérieur, vers la surface des électrodes d'affichage, par rapport à la normale à la base de la cellule.
6. Module d'affichage selon l'une quelconque des revendications précédentes, dans lequel la face extérieure (41) du guide de lumière latéral diffuse la lumière.
7. Système d'affichage à projection par réflexion comprenant un module d'affichage électrochrome (10) selon l'une quelconque des revendications précédentes, une source de lumière (32) dirigée sur la face extérieure (41) du guide de lumière latéral et un ensemble de lentilles de projection (31) situé a proximité le couvercle transparent (16).
8. Système d'affichage selon la revendication 7, dans lequel la source de lumière (32) dirige la lumière (40) principalement sur une partie supérieure de la face extérieure (41) du guide de lumière latéral (12).
9. Système d'affichage selon la revendication 8 ou 9, dans lequel le guide de lumière latéral a la forme d'un prisme triangulaire tronqué, dont la dimension diminue vers la cellule, et la source de lumière est une lampe avec un réflecteur ellipsoïdal et un filament à un foyer de l'ellipse, la lampe étant située de manière que le second foyer de l'ellipse se trouve dans la région de la face extérieure du guide de lumière.
10. Système d'affichage selon la revendication 7, dans lequel la source lumineuse comporte un bloc transparent (56) de section partiellement elliptique et une lampe tubulaire (55) à un foyer de l'ellipse, ce bloc se terminant par une face contenant l'autre foyer de l'ellipse, cette face s'appuyant contre la face extérieure du guide de lumière latéral et étant masquée sur une partie de sa surface supérieure au-dessus de son appui sur le guide de lumière latéral.
EP80304781A 1980-12-31 1980-12-31 Module d'affichage électrochrome et système réflecteur de projection Expired EP0055317B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP80304781A EP0055317B1 (fr) 1980-12-31 1980-12-31 Module d'affichage électrochrome et système réflecteur de projection
DE8080304781T DE3071128D1 (en) 1980-12-31 1980-12-31 Electrochromic display module and reflective projection system therefor
US06/307,914 US4436378A (en) 1980-12-31 1981-10-02 Passive display module and system
JP56181231A JPS57125920A (en) 1980-12-31 1981-11-13 Passive display module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80304781A EP0055317B1 (fr) 1980-12-31 1980-12-31 Module d'affichage électrochrome et système réflecteur de projection

Publications (2)

Publication Number Publication Date
EP0055317A1 EP0055317A1 (fr) 1982-07-07
EP0055317B1 true EP0055317B1 (fr) 1985-09-25

Family

ID=8187351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304781A Expired EP0055317B1 (fr) 1980-12-31 1980-12-31 Module d'affichage électrochrome et système réflecteur de projection

Country Status (4)

Country Link
US (1) US4436378A (fr)
EP (1) EP0055317B1 (fr)
JP (1) JPS57125920A (fr)
DE (1) DE3071128D1 (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069174B1 (fr) * 1981-06-30 1987-03-04 International Business Machines Corporation Méthode et dispositif d'affichage électrolytique de visualisation sélective d'une image
EP0112946B1 (fr) * 1982-12-30 1987-05-06 International Business Machines Corporation Dispositif d'affichage électro-optique scellé hermétiquement
US5450069A (en) * 1987-09-04 1995-09-12 Copytele, Inc. Data/facsimile telephone subset apparatus incorporating electrophoretic displays
US5076673A (en) * 1990-08-10 1991-12-31 Donnelly Corporation Prolonged coloration electrochromic assembly
US5666171A (en) * 1994-08-02 1997-09-09 Casio Computer Co., Ltd. Liquid crystal image projector
US5721602A (en) * 1995-10-11 1998-02-24 International Business Machines Corporation Mechanical packaging and thermal management of flat mirror arrays
US7256924B2 (en) * 2005-01-28 2007-08-14 Gentex Corporation Multi-cell electrochromic devices
US7927787B2 (en) * 2006-06-28 2011-04-19 The Invention Science Fund I, Llc Methods and systems for analysis of nutraceutical associated components
US20080179255A1 (en) * 2007-01-29 2008-07-31 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Fluidic devices
US20070136092A1 (en) * 2005-11-30 2007-06-14 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Computational and/or control systems related to individualized pharmaceutical and nutraceutical selection and packaging
US20080052114A1 (en) * 2005-11-30 2008-02-28 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Computational systems and methods related to nutraceuticals
US8340944B2 (en) * 2005-11-30 2012-12-25 The Invention Science Fund I, Llc Computational and/or control systems and methods related to nutraceutical agent selection and dosing
US20070124175A1 (en) * 2005-11-30 2007-05-31 Searete Llc, A Limited Liability Corporation Of The State Of Delaware. Computational and/or control systems and methods related to nutraceutical agent selection and dosing
US20080114577A1 (en) * 2005-11-30 2008-05-15 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Computational methods and systems associated with nutraceutical related assays
US8000981B2 (en) 2005-11-30 2011-08-16 The Invention Science Fund I, Llc Methods and systems related to receiving nutraceutical associated information
US20080241935A1 (en) 2007-03-27 2008-10-02 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Methods for pathogen detection
US8068991B2 (en) * 2005-11-30 2011-11-29 The Invention Science Fund I, Llc Systems and methods for transmitting pathogen related information and responding
US20110145009A1 (en) * 2005-11-30 2011-06-16 Jung Edward K Y Methods and systems related to transmission of nutraceutical associatd information
US8297028B2 (en) * 2006-06-14 2012-10-30 The Invention Science Fund I, Llc Individualized pharmaceutical selection and packaging
US20080241000A1 (en) * 2007-03-27 2008-10-02 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Systems for pathogen detection
US20070124219A1 (en) * 2005-11-30 2007-05-31 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Computational and/or control systems related to individualized nutraceutical selection and packaging
US7827042B2 (en) * 2005-11-30 2010-11-02 The Invention Science Fund I, Inc Methods and systems related to transmission of nutraceutical associated information
US20080033763A1 (en) * 2005-11-30 2008-02-07 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Methods and systems related to receiving nutraceutical associated information
US20080241909A1 (en) * 2007-03-27 2008-10-02 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Microfluidic chips for pathogen detection
US10296720B2 (en) 2005-11-30 2019-05-21 Gearbox Llc Computational systems and methods related to nutraceuticals
US20080004905A1 (en) * 2006-06-28 2008-01-03 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Methods and systems for analysis of nutraceutical associated components
US7974856B2 (en) 2005-11-30 2011-07-05 The Invention Science Fund I, Llc Computational systems and methods related to nutraceuticals
US20070174128A1 (en) * 2005-11-30 2007-07-26 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Computational and/or control systems related to individualized pharmaceutical and nutraceutical selection and packaging
US20080178692A1 (en) * 2007-01-29 2008-07-31 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Fluidic methods
US20070289258A1 (en) * 2006-06-14 2007-12-20 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Individualized pharmaceutical selection and packaging
US8617903B2 (en) 2007-01-29 2013-12-31 The Invention Science Fund I, Llc Methods for allergen detection
US20080245740A1 (en) * 2007-01-29 2008-10-09 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Fluidic methods
US20090050569A1 (en) * 2007-01-29 2009-02-26 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Fluidic methods
US20080181821A1 (en) * 2007-01-29 2008-07-31 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Microfluidic chips for allergen detection
US10001496B2 (en) 2007-01-29 2018-06-19 Gearbox, Llc Systems for allergen detection
US20090215157A1 (en) * 2007-03-27 2009-08-27 Searete Llc Methods for pathogen detection

Family Cites Families (9)

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BE785710A (fr) * 1971-10-08 1972-10-16 North American Rockwell Structure d'illumination pour un affichage a cristal liquide
CH539315A (de) * 1971-12-03 1973-07-15 Bbc Brown Boveri & Cie Informationsträger für Projektionszwecke
DE2237084A1 (de) * 1972-07-28 1974-02-14 Battelle Institut E V Messgeraet fuer elektrische spannungen
JPS50147685A (fr) * 1974-05-15 1975-11-26
UST938006I4 (en) * 1974-10-11 1975-09-02 Substitute for missing qr
JPS5189432A (fr) * 1975-02-03 1976-08-05
CH591705A5 (fr) * 1975-10-28 1977-09-30 Bbc Brown Boveri & Cie
JPS5349342U (fr) * 1976-09-30 1978-04-26
JPS553704U (fr) * 1978-06-21 1980-01-11

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"IEEE Transactions on Electron Devices", vol. ED-24(1977), pp. 918-930 *
Karl Mütze: "ABC der Optik", Verlag Werner Dausien, Hanau/Main, 1972, p 477 *

Also Published As

Publication number Publication date
DE3071128D1 (en) 1985-10-31
JPS57125920A (en) 1982-08-05
JPH0352048B2 (fr) 1991-08-08
EP0055317A1 (fr) 1982-07-07
US4436378A (en) 1984-03-13

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